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Alpha map

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T O P I C R E V I E W
Vampire	Posted - Jul 30 2004 : 03:58:51 AM Once I've found a tutorial (I guess, it was made by a guy at the Unlimited Realities) showing ho to make and use alpha maps. The UR site is no longer the one I knew (at least this is how I observed), so I can't find a good tutorial for this... Here is what I'd like obtain: There is a 2D environment (hybrid engine needed) Let's say, I have a FIRE sprite. I want the fire have various alpha values. I mean, at the top it should be more transparent than the bottom. For this I'll make a greyscale picture (black and white) to tell the engine where the sprite should me more and less transparent. How can I do this?
1 L A T E S T R E P L I E S (Newest First)
Eric Coleman	Posted - Jul 30 2004 : 11:12:23 AM I would suggest using Adobe Photoshop or Paint Shop Pro for generating grayscale images. Here is a program that I wrote that can generate a grayscale of an image and then save it to a file. Download Attachment: alphamapgen.zip 3.17 KB This might give you a few ideas on how to create your own alpha maps.

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